InfoPath Dev

I go it working using this tutorial: http://blog.pointbeyond.com/2011/11/20/cascading-dropdowns-in-infopath-2010/ thanks

I have 3 lists Category, SubCategory, DocTYpe that Cascade in the same order. Each subsequent list has a lookup coulm to the parent. I have it working fine in Sharepoint with SPServices cascading drop downs. I want to use the dropdowns in the DIP for Office Docs. I am setting up the DIP tempate in infopath using the 3 lists. By default ...